Non-polarizing Cube Beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a metallic-dielectric coating on the hypotenuse of one of the prisms. The low polarization dependence of the metallic-dielectric coating allows the transmission and reflection for S- and P- polarization states to be within 5% of each other. This means that theywill not change the state of polarization of the incident beam.

We offer both broadband and single wavelength non-polarizing cube beamsplitters (NPBS). An antireflective coating has beem applied to each face of the beamsplitter in _order to produce maximum transmission efficiency for the appropriate wavelength range.
Broadband NPBS

Specification: Material: BK7 grade A, optical glass Dimension Tolerance: ±0.1mm Flatness: l/8 @ 632.8 nm per 25mm Surface Quality: 40/20 scratches and dig Angle Tolerance: ±2 arc minutes Clear Aperature: 90% Bevel: 0.3 mm X 45 deg Coating Type: Hybrid Transmittance: 45%±5% Absorption: <10% Polarization: 6%

AR Coating: @450-680nm R<0.5%, @720-1080nm R<0.5%, @1100-1620nm R<0.5%
Standard Size:

Narrow Band NPBS

Specification:

Material: BK7 grade A, optical glass
Dimension Tolerance: ±0.1mm
Flatness: l/8 @ 632.8 nm per 25mm
Surface Quality: 40/20 scratches and dig
Angle Tolerance: ±2 arc minutes
Clear Aperature: 90%
Bevel: 0.3 mm X 45 deg
Coating Type: Hybrid
Transmittance: 45%±5%
Absorption: <10%
Polarization: 6%

Standard Size:

Ordering Information:

Part No. + wavelength
For example, NPBS1203 + 1500-1610,
Polarization Beamsplitter Cube 10x10x10 mm, 1500-1610 nm broadband coating

Refer to the following coating curve.

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